Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease

Myxomatous mitral valve disease (MMVD) is the most common cardiac disease in dogs. The association of QRS notching (nQRS) or fragmentation (fQRS) with disease severity is currently unknown. The study objective was to assess the prevalence of nQRS and fQRS in dogs with MMVD and its severity according...

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Autores principales:	Radu Andrei Baisan, Cătălina Andreea Turcu, Eusebiu Ionuț Condurachi, Vasile Vulpe
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	canine dog myxomatous mitral valve disease electrocardiogram qrs complex Veterinary medicine SF600-1100
Acceso en línea:	https://doaj.org/article/749eb875daaf41ee85c44c40af3207f6
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spelling	oai:doaj.org-article:749eb875daaf41ee85c44c40af3207f62021-11-04T15:00:41ZRetrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease0165-21761875-594110.1080/01652176.2021.1992803https://doaj.org/article/749eb875daaf41ee85c44c40af3207f62021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/01652176.2021.1992803https://doaj.org/toc/0165-2176https://doaj.org/toc/1875-5941Myxomatous mitral valve disease (MMVD) is the most common cardiac disease in dogs. The association of QRS notching (nQRS) or fragmentation (fQRS) with disease severity is currently unknown. The study objective was to assess the prevalence of nQRS and fQRS in dogs with MMVD and its severity according to ACVIM classification and to compare the results with a group of healthy dogs. This retrospective cross-sectional study included 34 healthy control dogs and 155 dogs with spontaneous MMVD (42% of dogs in class B1, 23% in class B2 and 35% in class C). fQRS was defined as nQRS complexes in two contiguous leads in the frontal plane (leads I and aVL) and (II, III or aVF). A one-way ANOVA with Bonferroni post-hoc test was used to assess the differences in continuous data between control and MMVD groups. Of the MMVD group, 58% showed nQRS in at least one lead and 27% presented fQRS. There was no difference between the number of leads with a nQRS and disease severity (p = 0.75) nor did the number of leads with a nQRS correlate with left atrial size (r = 0.48; p = 0.5). The number of dogs with fQRS did not differ among classes of MMVD (p = 0.21). nQRS and fQRS were more prevalent in dogs with MMVD compared to control dogs (p < 0.01). This study did not identify any relationship between the number of leads with a nQRS and disease severity. However, dogs with MMVD had a higher prevalence of nQRS and fQRS compared to control group.Radu Andrei BaisanCătălina Andreea TurcuEusebiu Ionuț CondurachiVasile VulpeTaylor & Francis Grouparticlecaninedogmyxomatous mitral valve diseaseelectrocardiogramqrs complexVeterinary medicineSF600-1100ENVeterinary Quarterly, Vol 41, Iss 1, Pp 301-307 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	canine dog myxomatous mitral valve disease electrocardiogram qrs complex Veterinary medicine SF600-1100
spellingShingle	canine dog myxomatous mitral valve disease electrocardiogram qrs complex Veterinary medicine SF600-1100 Radu Andrei Baisan Cătălina Andreea Turcu Eusebiu Ionuț Condurachi Vasile Vulpe Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease
description	Myxomatous mitral valve disease (MMVD) is the most common cardiac disease in dogs. The association of QRS notching (nQRS) or fragmentation (fQRS) with disease severity is currently unknown. The study objective was to assess the prevalence of nQRS and fQRS in dogs with MMVD and its severity according to ACVIM classification and to compare the results with a group of healthy dogs. This retrospective cross-sectional study included 34 healthy control dogs and 155 dogs with spontaneous MMVD (42% of dogs in class B1, 23% in class B2 and 35% in class C). fQRS was defined as nQRS complexes in two contiguous leads in the frontal plane (leads I and aVL) and (II, III or aVF). A one-way ANOVA with Bonferroni post-hoc test was used to assess the differences in continuous data between control and MMVD groups. Of the MMVD group, 58% showed nQRS in at least one lead and 27% presented fQRS. There was no difference between the number of leads with a nQRS and disease severity (p = 0.75) nor did the number of leads with a nQRS correlate with left atrial size (r = 0.48; p = 0.5). The number of dogs with fQRS did not differ among classes of MMVD (p = 0.21). nQRS and fQRS were more prevalent in dogs with MMVD compared to control dogs (p < 0.01). This study did not identify any relationship between the number of leads with a nQRS and disease severity. However, dogs with MMVD had a higher prevalence of nQRS and fQRS compared to control group.
format	article
author	Radu Andrei Baisan Cătălina Andreea Turcu Eusebiu Ionuț Condurachi Vasile Vulpe
author_facet	Radu Andrei Baisan Cătălina Andreea Turcu Eusebiu Ionuț Condurachi Vasile Vulpe
author_sort	Radu Andrei Baisan
title	Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease
title_short	Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease
title_full	Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease
title_fullStr	Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease
title_full_unstemmed	Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease
title_sort	retrospective evaluation of notched and fragmented qrs complex in dogs with naturally occurring myxomatous mitral valve disease
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/749eb875daaf41ee85c44c40af3207f6
work_keys_str_mv	AT raduandreibaisan retrospectiveevaluationofnotchedandfragmentedqrscomplexindogswithnaturallyoccurringmyxomatousmitralvalvedisease AT catalinaandreeaturcu retrospectiveevaluationofnotchedandfragmentedqrscomplexindogswithnaturallyoccurringmyxomatousmitralvalvedisease AT eusebiuionutcondurachi retrospectiveevaluationofnotchedandfragmentedqrscomplexindogswithnaturallyoccurringmyxomatousmitralvalvedisease AT vasilevulpe retrospectiveevaluationofnotchedandfragmentedqrscomplexindogswithnaturallyoccurringmyxomatousmitralvalvedisease
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Retrospective evaluation of notched and fragmented QRS complex in dogs with naturally occurring myxomatous mitral valve disease

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